• Title/Summary/Keyword: Deterioration Diagnosis

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An Experimental Study on the Carbonation Properties of Concrete According to Accelerating Carbonation Conditions (촉진중성화 조건에 따른 콘크리트의 중성화 특성에 관한 실험적 연구)

  • 문형재;이의배;송민섭;주지현;조봉석;김무한
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2004.05a
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    • pp.41-44
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    • 2004
  • Recently, in the case of domestic, for all that the deterioration environment about the carbonation of reinforced concrete structures is accelerated, systematic diagnosis and researches are not completed. And the selection techniques of repair material and method used under the situation that the indicator and the performance evaluation method are nor established are dependant on existing experience. Therefore, the purpose of this study is intend to present fundamental data for the reasonable selection of repair material and method. durability design and longevity on the deteriorated reinforced concrete structures, through computing the carbonation depth and velocity coefficient by accelerating carbonation test under various accelerating conditions and investigating the application of carbonation evaluation method. The results of this study are as follow; The resistances to carbonation are increased when the W/C ratio if lower and the treatment of surface coating is executed. And the carbonation depth and velocity coefficient according to accelerating carbonation test conditions are increased when the conditions of temperature, relative humidity and $CO_2$density are higher individually.

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Roles of growth factors, calcitonic polypeptides and neuropeptides in bone metabolism, osteoporosis and rheumatis arthritis

  • Lee, Tae-Kyun;Kim, June-ki;Kim, Kap-Sung;Chang, Jun-Hyuk;Jeong, Ji-cheon;Nam, Kyung-Soo;Kim, Cheorl-Ho
    • The Journal of Dong Guk Oriental Medicine
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    • v.9
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    • pp.1-23
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    • 2000
  • Osteoporosis is a common disorder characterized by reduced bone mineral density, deterioration of the microarchitecture of bone tissue and increased risk of fracture. The aim of treatment of osteoporosis is to maintain and, ideally, to restore bone strength safely. In recent years the role of polypeptide growth factors in bone metabolism has begun to appear. It has been proposed that alterations in the expression or production of growth factor can modulate the proliferation and activity of bone forming cells. Thus, the role of structurally diverse peptides for the management and diagnosis of osteoporosis has attracted the attention of many investigators. This paper reviews numerous findings concerning the use of polypeptides, hormones, and growth factors, for the management of osteoporosis. Many of the compounds mentioned here are experimental prototypes of new therapeutic classes. Though it is unlikely that some of the compounds may ever be used clinically, development of safe and efficacious agents in each class will define the future course of therapy for osteoporosis.

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Metastatic lipid-rich mammary carcinoma in a dog

  • Kim, Myung-Chul;Kim, So-Yeon;Lee, Su-Hyung;Kim, Dae-Yong;Yoon, Jung-Hee;Kim, Wan Hee;Lee, Jeong-Ha;Kim, Yongbaek
    • Korean Journal of Veterinary Research
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    • v.54 no.4
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    • pp.265-268
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    • 2014
  • An adult female dog was presented for evaluation of mammary gland masses. Complete blood count and serum chemistry data were within normal limits. Fine-needle aspiration cytology of the mammary masses revealed clusters of malignant epithelial cells with clear cytoplasmic vacuoles. Based on histopathological findings, a diagnosis of lipid-rich mammary carcinoma was made. Approximately 5 weeks after surgical removal, the tumor recurred at the surgery site and metastasis to the tibia was detected. Due to the poor prognosis and deterioration of the condition, the dog was euthanized.

A Case of Left Atrial Myxoma (좌심방 점액종 1례 보고)

  • 유수웅
    • Journal of Chest Surgery
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    • v.11 no.3
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    • pp.348-354
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    • 1978
  • Myxoma constitue about 50% of a II primary cardiac, tumor (incidence 0.03%) and occur in any of the cardiac chambers, but about 75% of themare found in the left atrium. As is well known, left atrial myxoma usually simulates mitral valvular disease, and it tends to bring about postural syncope and frequent embolic manifestaticns. The clinical manifestation of left atrial myxoma upon the circulation are obstructive effects, embolic effects and constitutional effects. Diagnosis is now most of all important since surgery can be dramatically curable, whereas untreated myxoma apparently invariably lead to deadful course. Preaprative diagncsis by echocardiogram is so simple and accurate for detection of myxoma that awareness of mitral valvular heart disease with rapid deterioration must be screened. We have diagnosed one case of the left atrial myxoma preopratively by phonocardiogram, echocardiogram and levophase pulmonary angiograJ;n and successfully treated by operation under extra corporeal circulation. A 38 years old housewife was admitted to the National Medical Center because of dyspnea, and paroxysmal cough on occasions for prior to hospitalization. Operation was carried out by median sternotomy and left atriotomy with mild hypothermia under E.C.C. The left atrial myxoma was extirpated including endocardial fragment and its weight was 23gm. The hospital course was not eventful and she can work nowadays without symptoms.

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Study on Reliability of Water Absorption Diagnosis through Precise Water Absorption Test

  • Kim, Hee-Soo;Bae, Yong-Chae;Kim, Hee-Dong
    • Journal of Electrical Engineering and Technology
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    • v.7 no.5
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    • pp.772-777
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    • 2012
  • Accidents caused by water absorption in water-cooled generator stator windings often occur all over the world. The absorption into the insulator of the coolant, which is used to cool down the heat generated by stator windings during operation, leads to the deterioration of dielectric strength, and insulation breakdown. An insulation breakdown may cause not only an enormous economic loss but also a very serious grid accident that would compromise stable supply of electric power. More than 50 % of domestic generators have been in operation for more than 15 years, and water absorption tests performed on 50 water-cooled generator stator windings during a five-year planned preventive maintenance period beginning in 2006 identified water absorption problems in 10 of them, all of which required repair. Because the existing water absorption test detects this problem by utilizing stochastic methods after measuring the capacitances at the final positions of insulation breakdown, its accuracy is limited. This study demonstrates that water absorption can be more accurately diagnosed by utilizing method along with a more precise one.

Concept Analysis of Spirituality in Cancer Patients - focusing on Christianity, Buddhism, Atheism and Agnosticism - (암환자의 영성 개념 분석 - 기독교, 불교, 무종교 중심으로 -)

  • Lee, Mee-La
    • Korean Journal of Adult Nursing
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    • v.15 no.4
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    • pp.551-562
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    • 2003
  • Purpose: All nurses should provide spiritual care for their clients. It is especially important to care spiritually for cancer patients facing the crisis of life. Therefore, the purpose of this study is to analyze the concept of spirituality which is one of the basic concepts for spiritual care in cancer patients. Method: The subjects of this study were 8 cancer patients; 2 Christians,3 Buddhists, and 3 persons who did not have any religion. The data was collected and analyzed by Hybrid Model. Result: The results of this study were as follows: Dimensions of spirituality(vertical dimension connected with the absolute being, horizontal dimension related to others, existential dimension related to seeking of meaning), attributes of spirituality(dynamic process strengthened in suffering due to struggle with cancer, connectedness with the absolute being or will and belief in oneself, transcendence of reality, meaning and purpose of life, future oriented), outcomes of spirituality(intrinsic, behavioral). Conclusion: The spirituality of cancer patients is manifested differently by his(her) religion, age, past experiences and burden of family, and is able to be strengthened with cancer. Therefore, nurses should recognize that diagnosis and deterioration of cancer is not only a spiritual crisis but can be a good chance for spiritual growth, as well.

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Pathophysiology-based Interpretation of Magnetic Resonance Imaging and Management of Cerebral Fat Embolism: Case Report and Review of Literature (병리 생리학적 근거를 바탕으로한, 뇌 지방색전증의 자기공명영상의 해석 및 치료: 증례 보고 및 문헌고찰)

  • Park, Jae-Hyo;Lim, Byung-Chul
    • Investigative Magnetic Resonance Imaging
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    • v.14 no.1
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    • pp.69-73
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    • 2010
  • Cerebral fat embolism (CFE) is a rare, albeit potentially lethal complication of long-bone fractures. All trauma patients who are initially lucid and subsequently experience mental status deterioration should undergo immediate evaluation of possible CFE. In the present case, magnetic resonance imaging (MRI) was the most sensitive technique for the diagnosis of CFE, particularly the use of diffusionweighted images (DWI). The authors present this case to report a pathophysiologybased interpretation of the MR characteristics and treatment of CFE.

A Diagnosis of Land Use Regulation Policy in Paldang Lake (팔당 상수원 토지이용규제 정책의 문제점과 개선방안)

  • Ha, Joo-Hyun;Lee, Hye Won;Choi, Junghyun;Park, Seok Soon
    • Journal of Korean Society on Water Environment
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    • v.25 no.6
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    • pp.855-862
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    • 2009
  • This paper pointed out major problems of land use regulation policy surrounding Paldang Lake as follows: (1) inefficient management system, (2) inconsistent administrative management, (3) illogical selection of regulated area, (4) contradictory present system, and (5) controversial discharge control. Several regulation laws for the land-use surrounding Paldang Lake caused confusion of application and inefficiency of management. Amendment of regulation laws made it possible that the regulated area was developed, which resulted in the deterioration of water quality. In addition, successive regulations without scientific implementation overexpanded regulated area and focus on the discharge concentration of contaminated sources stimulated development of small size sources. To overcome these problems, we suggested reestablishment of regulated area, differentiation of regulation amendments, and flexibility in the application of regulation. It is necessary to arrange regulated area based on the efficient land use management and scientific implementation and then to mitigate land use regulation under the sustainable development. For the flexible application of regulation, it is required to amend the rule in response to the change of environmental condition and development of environmental techniques.

Diffusion of Chloride Ions and Evaluation of Lifetime in Highway Bridges (고속도로 교량의 염소이온확산 특성과 공용수명 평가)

  • Shin, Jae-In;Park, Chang-Ho;Lee, Byeong-Ju;Kim, Hyeong-Su
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.11 no.6
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    • pp.152-158
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    • 2007
  • Chloride attach is one of the main factors which cause the deterioration of structures. In the case highway bridges, de-ice salts very significantly increase the surface scaling due to frost action. The deteriorated concrete is subject to experience degrading of durability under chloride attach environment. In this study, diagnosis report of 147 bridges is investigated and core sample of 21 bridge decks is examined and analyzed. The results show that the cover of decks concrete is required more than 8cm for retaining bridge lifetime over 30 years.

An Experimental Study on the Mechanical Properties of High Strength of High Strength Concrete Subject to High Temperature Heating (고온가열을 받은 고강도 콘크리트의 역학적 특성에 관한 실험적 연구)

  • Lee, Tae-Gyu;Sin, Seung-Bong;Kim, Young-Sun;Lee, Seung-Hoon;Kim, Gyu-Yong;Kim, Moo-Han
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2007.04a
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    • pp.9-12
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    • 2007
  • Recently, research and development related to high strength concrete for the high rise and large scale reinforced concrete building has been actively promoted in worldwide by national and private research project. But, it is reported that violent explosive explosion would be happened when it was exposed in fire. In the existed study, a explosion in a reinforced concrete structure looses the organism by the different contraction and expansion of hardened cement paste and aggregate, and causes crack by thermal stress. In case of the Europe, Japan and America, they have studied the explosion for a long time. However it would hardly study the explosion in domestic, So it is needed base on mechanical properties of fire deterioration in high strength concrete. Therefore, this study is intend as an mechanical properties of specimen to high heating by heating and load test machine and $700^{\circ}C$. As a result, it is willing to propose fundamental data for quick and accurate diagnosis of deteriorated concrete structure by fire damage with experiment according to the design high strength concrete.

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